Navaho G-38 Model Credit: Tom Johnson. 31,984 bytes. 567 x 313 pixels.

The Navaho G-38 was the ultimate development of the A-9/A-10 concept. At the time the Navaho program was cancelled (13 July 1957) the missiles were in fabrication with first flight test planned by the end of 1958. The engines developed for the G-38 booster were used with minor modification for all of the first generation of American orbital rockets - the Jupiter, Thor, Atlas, Titan 1, and Saturn I. They continue to use to this day in the Atlas II and Delta 3.

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Navaho G-38 Landing Credit: Tom Johnson. 33,487 bytes. 405 x 321 pixels.

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Liftoff Thrust: 183,670 kgf. Total Mass: 131,518 kg. Core Diameter: 2.4 m. Total Length: 65.0 m. Flyaway Unit Cost $: 24.00 million. in 1985 unit dollars.

• Stage Number: 1. 1 x G-38 Navaho Booster Gross Mass: 76,870 kg. Empty Mass: 16,780 kg. Thrust (vac): 208,854 kgf. Isp: 282 sec. Burn time: 90 sec. Isp(sl): 248 sec. Diameter: 2.4 m. Span: 2.4 m. Length: 27.4 m. Propellants: Lox/Kerosene No Engines: 3. LR-83-NA-1

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  Navaho G-38 Engine - Navaho G-38 3 Engine Cluster 47,245 bytes. 306 x 436 pixels.

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• Stage Number: 2. 1 x G-38 Navaho Missile Gross Mass: 54,648 kg. Empty Mass: 14,512 kg. Thrust (vac): 9,102 kgf. Isp: 1,200 sec. Burn time: 10,300 sec. Isp(sl): 0 sec. Diameter: 2.0 m. Span: 12.3 m. Length: 26.6 m. Propellants: Air/Kerosene No Engines: 2. RJ47

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  Navaho development - Navaho development sequence Credit: © Mark Wade. 7,273 bytes. 614 x 366 pixels.

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• Navaho program cancelled

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  Navaho vs Burya Credit: © Mark Wade. 10,772 bytes. 530 x 475 pixels.

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  The supersonic intercontinental cruise missile was made obsolete by the Atlas ICBM. Already-built Navaho G-26 test missiles were flown to the end of 1958. At the time the program was cancelled full-range G-38 missiles were in fabrication with first flight test planned by the end of 1958. The engines, missile frame manufacturing techniques, inertial and stellar navigation equipment, and telemetry/guidance techniques developed for Navaho established the technical basis for all subsequent US rocket developments.

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  Navaho G-38 3 View Credit: © Mark Wade. 5,425 bytes. 308 x 576 pixels.

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• 221 - Gibson, James N, The Navaho Missile Project, Schiffer, 1996.

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Navaho G-38 - Navaho G-38 160 pixel Credit: © Mark Wade. 2,283 bytes. 107 x 429 pixels.

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Navaho G-38 Engine - Navaho G-38 Engine Detail Credit: Bob Fortune. 38,798 bytes. 398 x 421 pixels.

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Navaho G-38 Engine - Navaho G-38 Engine Section Credit: Tom Johnson. 33,404 bytes. 392 x 310 pixels.

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